Transcript Species Interactions

Species Interactions
PREDATION
one organism kills and
eats another organism
(Predator/prey)
Species A (+)
Species B (-)
Lizard fish eating a shrimp gobi
Adaptations Related to Predator-Prey
PURSUIT
Pelican
Sights its prey-a fish-while in flight. Less
than 2 seconds after diving into the
water at a speed as great as 45mph it
has its catch.
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Killer Whale
Hunt in pack and herd salmon into a cove
so that they are easier to catch
Trait that increases hunting
efficiency favors predators that
pursue.
Process information very quicklylarge brains
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Adaptations Related to Predator-Prey
AMBUSH
Goldenrod spider
Same color as the flowers where it
hides. It is able to go unnoticed
and
ambush its prey
Anglerfish
Attract prey with luminescent lures,
making it easy to ambush
http://www.youtube.com/watch?v=RitJe16c3sM
Kenyan Sand Boa
http://www.youtube.com/watch?v=azD1pu2_oqo
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Adaptations Related to Predator-Prey
Prey: Chemical Defenses
Poison Dart Frog
Poison glands in its skin and warning
coloration that prompts avoidance
http://www.youtube.com/watch?v=Ar57xFsHebc
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Striped Skunk
Sprays acrid chemicals from its anal glands
Puffer Fish
http://www.youtube.com/watch?v=CKeocBVPkX0
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Adaptations Related to Predator-Prey
Prey:Camouflage
http://www.youtube.com/watch?v=HSPptPhbFVc
DIFFERENT CAMOUFLAGED FISH
COMPETITION: when two or more organisms of
the same or different species attempt to use the
same limited resource
Intraspecific competiton: within a population
Interspecific competition: between two different species
Species A(-)
Species B (-)
PARASITISM:
One organism (parasite) obtains nourishment
from another organism, its host
May weaken its host, it rarely kills it
• Species A (+)
• Species B (-)
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Zombie Snails
http://www.youtube.com/watch?v=EWB_COSUXMw
Cowbird: brood parasitism
Mistletoe
Parasitic isopod on fish
Sea anemone and clownfish
MUTUALISM: cooperative partnership
between 2 species in which both benefit
Species A (+)
Species B (+)
Cleaning shrimp
and trunk fish
COMMENSALISM: relationship where
one species benefits and the other is
neither harmed or helped
Species A (+)
Species B (o)
Remora shark
Barnacles on a whale
With the person sitting next to you…
Come up with another example of each of
the 5 types of ecological relationships.
Habitat Interaction
Observe 3 interactions between 2 different organisms.
Interaction 1
Organism 1
Organism 2
Effect
on 1
Effect
on 2
Description
*If you don’t know the name of the organism, it is ok to describe
the organism